Ensuring Fee-Free Benefit Transactions Act of 2023 This bill makes permanent the prohibition on Supplemental Nutrition Assistance Program (SNAP) benefit transaction fees. The current prohibition expires at the end of FY2023. The bill also specifies that the prohibition applies to states (and any agent, contractor, or subcontractor of a state who facilitates the provision of SNAP benefits) for costs for fraud prevention tools, coverage of infrastructure costs, and other costs associated with updating the Electronic Benefits Transfer (EBT) processing infrastructure.